Sodium arsenate is the inorganic compound with the formula NaH2AsO4.H2O. Related salts are also called sodium arsenate, including Na2HAsO4 and Na3AsO4. This particular salt is a colorless solid that is highly toxic. The potassium salt has similar properties.
The salt is the conjugate base of arsenic acid:
- H3AsO4 H2AsO−
4 + H+ (K1 = 10−2.19)
It is prepared in this way and crystallized by cooling a hot saturated aqueous solution, where it is highly soluble when hot (75.3 g in 100 mL at 100 °C). A fine white powder of the monohydrate crystallizes. Upon heating, the solid loses water of crystallization and then the dihydrogenarsenate anions condense to give Na2H2As2O7 and, above 230 °C, NaAsO3.
Other articles related to "arsenate":
... Ferrarisite (1979-020) 08.CJ.30 (IUPAC Pentacalcium di(hydrogen arsenate) diarsenate nonahydrate) Ferriallanite-(Ce) (2000-041) 09.BG.05b Ferriallanite-(La) (2010-066) 09.BG.05b Ferri-clinof ...
... Calcium dititanium pentaoxide monohydrate) Cahnite (Y 1927) 06.AC.70 (IUPAC Dicalcium boron arsenate tetrahydroxyl) Calaverite (Y 1868) 02.EA.10 (IUPAC Gold ditelluride) Calciborite (Y ... Chernovite-(Y) (1967-027) 08.AD.35 (IUPAC Yttrium arsenate) Chernykhite (1972-006) 09.EC.15 (BaV3+2(Si2Al2)O10(OH)2) Chervetite (Y 1963) 08.FA.15 (IUPAC Dilead divanadium(V) heptaoxide ...
... Gabrielsonite (1966-011) 08.BH.35 (IUPAC Lead iron arsenate hydroxyl) Gadolinite-(Ce) (Y 1978) 09.AJ.20 Gadolinite-(Y) (Y 1802) 09.AJ.20 Gagarinite-(Ce) (1993-038, IMA 10-C) 03.AB.35 ...
Famous quotes containing the word sodium:
“Every reader of the Dreiser novels must cherish astounding specimensof awkward, platitudinous marginalia, of whole scenes spoiled by bad writing, of phrases as brackish as so many lumps of sodium hyposulphite.”
—H.L. (Henry Lewis)